"There is no cure for it. We've seen it go up and down, he gets good oxygen flow to his tissue and it turns pink and looks healthier after a session. That's certainly helped and it hasn't spread," he explained.

Dr. Andrew Turkell built the chamber five years ago. This is how it works: inside the animals breathe 100 percent oxygen under pressure, that pressure forces the oxygen into the liquids of its body through plasma.

"There is a higher concentration of oxygen in the plasma. It is delivered to tissues in the entire body that might not be able to get a blood supply because there is a blockage or a wound," Dr. Turkell said.

Injuries like burns, cuts, swelling and even stroke can start to heal through multiple sessions. The chamber essentially turns oxygen into a drug that can save lives. Each treatment costs about $185.

There are 50 hyperbaric chambers in the United States, with the highest concentration in Florida. This was one of the first ones, and it's getting a lot of use.